Designed for the heavy hitters and severe overpronators desiring the very best in cushioning, support, and comfort. Built with a new Maximum Support specific last and a BioMorphic Fit® Upper to accommodate higher volume feet. The extended Dynamic DuoMax® Support System creates an incredibly supportive platform, while the Guidance Line® and Guidance Trusstic™ System help maintain a smoother ride. The ultra luxurious 8.5mm ComforDry™ X-40 sockliner and new FluidRide™ midsole maximize underfoot comfort and cushioning for moderate to severe overpronators. Weight: 11.4 oz. Heel Height: 21mm. Forefoot Height: 11mm.